libfdt/libfdt_internal.h

   1 #ifndef _LIBFDT_INTERNAL_H
   2 #define _LIBFDT_INTERNAL_H
   3 /*
   4  * libfdt - Flat Device Tree manipulation
   5  * Copyright (C) 2006 David Gibson, IBM Corporation.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public License
   9  * as published by the Free Software Foundation; either version 2.1 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21 #include <fdt.h>
  22
  23 #define ALIGN(x, a)     (((x) + (a) - 1) & ~((a) - 1))
  24 #define PALIGN(p, a)    ((void *)ALIGN((unsigned long)(p), (a)))
  25
  26 #define memeq(p, q, n)  (memcmp((p), (q), (n)) == 0)
  27 #define streq(p, q)     (strcmp((p), (q)) == 0)
  28
  29 int _fdt_check_header(const void *fdt);
  30 const char *_fdt_find_string(const char *strtab, int tabsize, const char *s);
  31 int _fdt_node_end_offset(void *fdt, int nodeoffset);
  32
  33 static inline void *_fdt_offset_ptr(const struct fdt_header *fdt, int offset)
  34 {
  35         return (void *)fdt + fdt_off_dt_struct(fdt) + offset;
  36 }
  37
  38 #define SW_MAGIC                (~FDT_MAGIC)
  39
  40 #endif /* _LIBFDT_INTERNAL_H */